Solar PV System Inspector Prep practice questions and answers 2026. Tap an option to test yourself — you'll see the correct answer and a plain-English explanation for every question. Free, no login.
Q11Which detail must be included in the documentation for a battery energy storage system coupled with PV?
✓ Correct answer: B. Battery capacity and chemistry information
Battery capacity and chemistry information is essential for safety evaluation, as different battery technologies have specific hazards, ventilation requirements, and fire suppression needs that must be documented for code compliance.
Q12What is the main purpose of checking string sizing calculations during document review?
✓ Correct answer: A. To verify compatibility with inverter voltage operating ranges
Checking string sizing calculations ensures that the number of modules in series is compatible with the inverter's voltage operating range, preventing potential damage or safety issues from voltage extremes.
Q13What key information should be included in an inspection report when code violations are found?
✓ Correct answer: D. Specific code references for each violation
Specific code references are essential in violation reports as they clearly identify which requirements aren't being met, providing clear guidance for corrections and legal justification for required changes.
Q14When reviewing PV system documentation, what information is necessary to verify proper grounding?
✓ Correct answer: C. Grounding electrode system details
Grounding electrode system details are necessary to verify proper grounding as they show how the PV system is connected to earth, which is critical for safety and lightning protection.
Q15What should an inspector document when examining labeling for a PV system disconnect?
✓ Correct answer: B. Clear identification of the disconnect's purpose and location
Clear identification of the disconnect's purpose and location is critical documentation as it ensures emergency responders can quickly locate and operate disconnects when needed.
Q16When reviewing plans for a ground-mounted PV array, which documentation element requires verification?
✓ Correct answer: A. Setback distances from property lines
Setback distances from property lines are critical for ground-mounted arrays as they ensure compliance with local zoning requirements and fire access needs.
Q17What must an inspector verify when reviewing documentation for a PV system on a historic building?
✓ Correct answer: D. Approval from historic preservation authorities
Approval from historic preservation authorities is essential for PV installations on historic buildings as these structures often have special requirements and restrictions that must be documented and followed.
Q18What information in the PV system documentation helps verify proper conductor ampacity?
✓ Correct answer: C. Conductor specifications and temperature correction factors
Conductor specifications and temperature correction factors are essential for verifying proper ampacity as they show whether the wiring can safely handle the maximum current under the expected environmental conditions.
Q19When documenting deviations from approved plans, what should an inspector require from the installer?
✓ Correct answer: B. Professional engineering approval for significant changes
Professional engineering approval is necessary for significant deviations as it ensures that the changes maintain system safety and performance in accordance with applicable codes and standards.
Q20What is the primary purpose of reviewing PV system commissioning documentation?
✓ Correct answer: A. To verify proper system testing and functionality
The primary purpose of reviewing commissioning documentation is to verify that the system has been properly tested and functions as designed, ensuring all safety features and performance parameters are operational before final approval.
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